Bard W48A1, W30L1, W42A1, W70A1, W60L1, W42L1, W60A1, W36A1, W24A1, W17L1, W18A1, W24L1, W18L1, W36L1, W17A1, W30A1, W70L1, W48L1 User Manual 2

INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGE AIR CONDITIONERS

MODELS

W17A1 W17L1

W18A1 W18L1

W24A1 W24L1

W30A1 W30L1

W36A1 W36L1

W42A1 W42L1

W48A1 W48L1

W60A1 W60L1

W70A1 W70L1

	Bard Manufacturing Company, Inc.	Manual :	2100-508F
	Bryan, Ohio 43506	Supersedes:	2100-508E
	Since 1914...Moving ahead just as planned.	File:	Volume III Tab 16
		Date:	12-15-11

	Manual	2100-508F
	Page	1 of 25

Contents

Getting Other Information and Publications	3	Start Up	15
		General ..............................................................
Wall Mount General Information		Topping Off System Charge...................................	15
Wall Mount Model Nomenclature ............................	4	Safety Practices.....................................................	15
Shipping Damage ....................................................	4	Important Installer Note .........................................	16
General ................................................................	4	High Pressure Switch ............................................	16
Duct Work ................................................................	5	Three Phase Scroll Compressor............................	16
Filters ................................................................	5	Phase Monitor .......................................................	16
Fresh Air Intake .......................................................	5	Condenser Fan Operation .....................................	16
Condensate Drain ....................................................	5	Service Hints .........................................................	16
		Sequence of Operation ..........................................	17
		Compressor Control Module ..................................	17
Installation Instructions		Adjustments ...........................................................	17
Wall Mounting Information .......................................	6	Pressure Service Ports ..........................................	17
Mounting the Unit ....................................................	6	Troubleshooting
Clearances Required ...............................................	6
Minimum Clearances ...............................................	6	Fan Blade Setting Dimensions ..............................	18
Wiring – Main Power .............................................	14	Removal of Fan Shroud .........................................	18
Wiring – Low Voltage Wiring .................................	14	Refrigerant Charge ................................................	18

Figures			Tables
Figure 1	Fresh Air Damper Assembly ...................	5	Table	1	Fan Blade Dimensions ..........................	18
Figure 2	Unit Dimensions ......................................	7	Table	2	Cooling Pressure ..................................	19
Figure 3A	Mounting Instructions ..............................	8	Table	3	Electrical Specifications W**A ..............	20
Figure 3B	Mounting Instructions - W17 – 36 ..............	9	Table	4	Electrical Specifications W**L ...............	21
Figure 3C	Mounting Instructions - W42, 48, 60, 70 ...	10	Table	5	Recommended Airflow ..........................	22
Figure 4	Electric Heat Clearance .........................	11	Table	6	Indoor Blower Performance ..................	22
Figure 5	Wall Mounting Instructions ....................	12	Table 7		Maximum ESP Electric Heat Only........	22
Figure 6	Wall Mounting Instructions ....................	12	Table	8	Electric Heat .........................................	23
Figure 7	Common Wall Mounting Installations....	13	Table	9	Optional Accessories ............................	24
Figure 8	Fan Blade Setting .................................	18	Table	10	Vent & Control Options .........................	25

Manual	2100-508F
Page	2 of 25

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.

National Electrical Code ......................	ANSI/NFPA 70
Standard for the Installation ..............	ANSI/NFPA 90A
of Air Conditioning and Ventilating Systems
Standard for Warm Air ......................	ANSI/NFPA 90B
Heating and Air Conditioning Systems
Load Calculation for ............................	ACCA Manual J
Residential Winter and Summer Air Conditioning
Duct Design for Residential ..............	ACCA Manual D

Winter and Summer Air Conditioning and Equipment

Selection

FOR MORE INFORMATION, CONTACT THESE PUBLISHERS:

ACCA	Air Conditioning Contractors of America
	1712 New Hampshire Ave. N.W.
	Washington, DC 20009
	Telephone: [phone]
	Fax: [phone]

ANSI	American National Standards Institute
	11 West Street, 13th Floor
	New York, NY 10036
	Telephone: [phone]
	Fax: [phone]

ASHRAE American Society of Heating, Refrigeration

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.

Atlanta, GA 30329-2305

Telephone: [phone]

Fax: [phone]

NFPA	National Fire Protection Association
	Batterymarch Park
	P.O. Box 9101
	Quincy, MA 02269-9901
	Telephone: [phone]
	Fax: [phone]

Manual	2100-508F
Page	3 of 25

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

W 42 A 1 – A 10

MODEL NUMBER

CAPACITY

18 - 1½ Ton

24 - 2 Ton

30 - 2½ Ton

36 - 3 Ton

42 - 3½ Ton

48 - 4 Ton

60 - 5 Ton

70 - 6 Ton

REVISIONS

KW

VOLTS & PHASE

A - 230/208/60/1

B - 230/208/60/3

C - 460/60/3

A - Right Hand Air Conditioner

L - Left Hand Air Conditioner

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard) B - Blank-off Plate

M - Motorized Fresh Air Damper

V - Commercial Ventilator - Motorized with Exhaust

E - Economizer (Internal) - Fully Modulating with Exhaust

R- Energy Recovery Ventilator - Motorized with Exhaust (See Spec. Sheet S3397)

X	X		X	X	X	A
						CONTROL MODULES
						(See Spec. Sheet S3397)
				COIL OPTIONS
	COLOR OPTIONS			X - Standard
	X -		Beige (Standard)	1	- Phenolic Coated Evaporator
	1	-	White	2	- Phenolic Coated Condenser
	4	-	Buckeye Gray	3	- Phenolic Coated Evaporator
	5	-	Desert Brown			and Condenser
	6	-	Dark Bronze	OUTLET OPTIONS
	A -		Aluminum
	S -		Stainless Steel	X - Front (Standard)
				T - Top Outlet (W30A, W36A Only)

FILTER OPTIONS

X - One Inch Throwaway (Standard)

W - One Inch Washable

P - Two Inch Pleated

NOTE: Vent options X, B and M are without exhaust capability. May require separate field supplied barometric relief in building.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

GENERAL

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

The refrigerant system is completely assembled and charged. All internal wiring is complete.

The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly “Starting Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 3 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

Manual	2100-508F
Page	4 of 25

DUCT WORK

All duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage.

Refer to Maximum ESP of operation Electric Heat Table 6.

Design the duct work according to methods given by the Air Conditioning Contractors of America (ACCA). When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

Models W17 - W24 as approved for zero inch clearance to the supply duct. For model series W30, W36, W42, W48, W60 and W70 a 1/4 inch clearance to combustible material for the first three feet of duct attached to the outlet air frame is required. See Wall Mounting Instructions and Figures 3 and 4 for further details.

Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity.

Some installations may not require any return air duct. A metallic return air grille is required with installations not requiring a return air duct. The spacing between louvers on the grille shall not be larger than 5/8 inch.

Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, filters must be of sufficient size to allow a maximum velocity of 400 fpm.

FILTERS

A 1-inch throwaway filter is standard with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the filter access panel. A 1-inch washable filter and 2- inch pleated filter are also available as optional accessories. The internal filter brackets are adjustable to accommodate the 2-inch filter by bending two (2) tabs down on each side of the filter support bracket.

FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in the service door.

If the unit is equipped with a fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, the maximum and minimum blade position stops must be installed. See Figure 1.

All capacity, efficiency and cost of operation information is based upon the fresh air blank-off plate in place and is recommended for maximum energy efficiency.

The blank-off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.

NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.

FIGURE 1

FRESH AIR DAMPER

Manual	2100-508F
Page	5 of 25

INSTALLATION INSTRUCTIONS

WALL MOUNTING INFORMATION

1.Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3.

2.On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration.

3.Concrete block walls must be thoroughly inspected to insure that they are capable of carrying the weight of the installed unit.

MOUNTING THE UNIT

1.These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides. A bottom mounting bracket, attached to skid for shipping, is provided for ease of installation, but is not required.

2.The unit itself is suitable for 0 inch clearance, but the supply air duct flange and the first 3 feet of supply air duct require a minimum of 1/4 inch clearance to combustible material for model series W30, W36, W42, W48, W60 and W70. However, it is generally recommended that a 1-inch clearance is used for ease of installation and maintaining the required clearance to combustible material. See Figure 3 for details on opening sizes.

3.Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 3.

4.Mount bottom mounting bracket.

5.Hook top rain flashing, attached to front - right of supply flange for shipping, under back bend of top.

WARNING

Failure to provide the 1/4 inch clearance between the supply duct and a combustible surface for the first 3 feet of duct can result in fire causing damage, injury or death.

6.Position unit in opening and secure with 5/16 lag bolts; use 7/8 inch diameter flat washers on the lag bolts.

7.Secure rain flashing to wall and caulk across entire length of top. See Figure 3.

8.For additional mounting rigidity, the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself (depending upon wall construction). Be sure to observe required clearance if combustible wall.

9.On side-by-side installations, maintain a minimum of 20 inches clearance on right side to allow access to control panel and heat strips, and to allow proper airflow to the outdoor coil. Additional clearance may be required to meet local or national codes.

Clearances Required for Service Access and Adequate Condenser Airflow

MODELS	LEFT SIDE	RIGHT SIDE
W17A, W18A, W24A, W30A, W36A	15"	20"
W17L, W18L, W24L, W30L, W36L	20"	15"
W42A, W48A, W60A, W70A	20"	20"
W42L, W48L, W60L, W70L	20"	20"

NOTE: For side by side installation of two (2) W**A models there must be 20" between units. This can be reduced to 15" by using a W**L model (left side compressor and controls) for the left unit and WA (right side compressor and controls) for right unit.

See W**A Specification S3397 & W**L Specification S3400.

Minimum Clearances Required to Combustible Materials

	MODELS	SUPPLY AIR DUCT	CABINET
		FIRST THREE FEET
	W17A, L / W18A, L / W24A, L	0"	0"
	W30A, L / W36A, L	1/4"	0"
	W42A, L / W48A, L	1/4"	0"
	W60A, L / W70A, L

Manual	2100-508F
Page	6 of 25

FIGURE 2

Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)

MODEL	WIDTH	DEPTH	HEIGHT	SUPPLY		RETURN
	(W)	(D)	(H)	A	B	C	B	E	F	G	I	J	K	L	M	N	O	P	Q	R	S	T
W17A, L
W18A, L	33.300	17.125	70.563	7.88	19.88	11.88	19.88	35.00	11.00	25.75	20.56	26.75	28.06	29.25	27.00	2.63	34.13	22.06	10.55	4.19	12.00	5.00
W24A, L
W30A, L	38.200	17.125	70.563	7.88	27.88	13.88	27.88	40.00	11.00	25.75	17.93	26.75	28.75	29.25	27.00	2.75	39.19	22.75	9.14	4.19	12.00	5.00
W36A, L
W42A, L
W48A, L	42.075	22.432	84.875	9.88	29.88	15.88	29.88	43.88	13.63	31.66	30.00	32.68	26.94	34.69	32.43	3.37	42.88	23.88	10.00	1.44	16.00	1.88
W60A, L
W70A, L	42.075	22.432	94.875	9.88	29.88	15.88	29.88	43.88	13.63	41.66	30.00	42.68	36.94	44.69	42.43	3.37	42.88	33.88	10.00	1.44	16.00	1.88

All dimensions are in inches. Dimensional drawings are not to scale.

								E
W**A				D				O
			Built In	7.88	2			31.88 2
RIGHT		W	Rain Hood		1.00	2			.44
			4° Pitch
UNIT			Heater		2.13
			Access				Side Wall			R
			Panel
					A			Supply Air Opening
							Mounting
			Electric
							Brackets
			Heat				(Built In)			S
								B
			C. Breaker/
					I
			Disconnect
							Top Rain
			Access Panel
			(Lockable)				Flashing			S
							Shipping
			Filter Access				Location
			Panel
	5.75		Vent Option				Optional
					C	H		Return Air Opening		S
			Door				Electrical
							Entrances
	F		Ventilation
			Air
			Low Voltage							S 1
			Electrical
			Entrance		K
				Cond.
	G	Condenser	High Voltage		J		L
			Electrical	Air			M			1
		Air Outlet	Entrance	Inlet			P			S
										T
		Front View		Side View	Drain		N	Back View	Bottom Installation
							Q		Bracket	MIS-2487 B

1Dimension is 21.00 inches on W70A & W70L models.

2Optional top outlet (factory installed only) for W30A and W36A models only.

W**L LEFT UNIT

	E				Built In
	O
					Rain Hood
	.44			D	4° Pitch	W
			2.13		Electric
R					Heat
	Supply Air Opening	Side Wall			Heater
			A
		Mounting
					Access
		Brackets
S					Panel
		(Built In)

						C. Breaker/
						Disconnect
			Top Rain	I		Access Panel
						(Lockable)
			Flashing
S
			Shipping
						Filter Access
			Location
						Panel
			Optional			Ventilation		5.75
				C		Air
S	Return Air Opening
			Electrical			Vent Option
			Entrances
						Door
								F
1				H		Low Voltage
S
						Electrical
			L	K		Entrance
			M		Cond.	High Voltage	Condenser	G
				J	Air	Electrical
1
S			P			Entrance	Air Outlet
					Inlet
T
Drain	Bottom	Back View	2.63		Side View		Front View	MIS-2488 B
	Installation		9.06
	Bracket

Manual	2100-508F
Page	7 of 25

Page	Manual
25 of 8	508F-2100

FIGURE 3A

W17A1, W17L1, W18A1, W18L1, W24A1, W24L1

MOUNTING INSTRUCTIONS

3 1613 "		7 161 "		20"	7 161 "
			Supply Opening		8"
12"
12"					20 21 "
12"			Return Opening		12"
12"				20"
12"		3"		3	81 "
	7	"	1"	4"	1"
	8			Typ.
5"
		4"
		Typ.
		2"		2"

SEAL WITH BEAD

OF CAULKING ALONG

ENTIRE LENGTH OF TOP.

TOP

WALL

HEATER ACCESS

PANEL

RAIN FLASHING

SUPPLIED

FOAM AIR SEAL

WALL STRUCTURE

1/4" CLEARANCE ON ALL FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE MATERIALS

SUPPLY AIR

DUCT

RETURN AIR

OPENING

NOTES:

IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION.

W**A UNIT SHOWN, W**L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

Wall Opening and Hole Location View

Right Side View

MIS-353 C

Page	Manual
25 of 9	508F-2100

							FIGURE 3B
						W30A1, W30L1, W36A1, W36L1
						MOUNTING INSTRUCTIONS
		A	B	C	D	E	SEAL WITH BEAD
							OF CAULKING ALONG
	REQUIRED DIMENSIONS TO MAINTAIN						ENTIRE LENGTH OF TOP.
	1/4" MIN. CLEARANCE FROM	28 1/2	8 1/2	5 1/4	3 13/16	17 5/8
	COMBUSTIBLE MATERIALS
	REQUIRED DIMENSIONS TO MAINTAIN						TOP
	RECOMMENDED 1" CLEARANCE FROM	30	10	4 1/2	4 9/16	16 7/8

COMBUSTIBLE MATERIALS

WALL

			C		A	C
D							HEATER ACCESS
				Supply Opening		B
							PANEL
12"
						E
12"
12"				Return Opening		14"
12"					28"
12"	7			3"	4"	3 81 "
		"		1"		1"
	8				Typ.
5"
				4"
			1	Typ.		4 21 "
		4	2	"

RAIN FLASHING

SUPPLIED

FOAM AIR SEAL

WALL STRUCTURE

1/4" CLEARANCE ON ALL FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE MATERIALS

SUPPLY AIR

DUCT

RETURN AIR

OPENING

NOTES:

IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME OF INSTALLATION.

W*R UNIT SHOWN, W*L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

Wall Opening and Hole Location View

Right Side View

MIS-311 C

Page	Manual
25 of 10	508F-2100

FIGURE 3C

W42A1, W42L1, W48A1, W48L1, W60A1, W60L1, W70A1, W70L1

MOUNTING INSTRUCTIONS

									SEAL WITH BEAD
									OF CAULKING ALONG
									ENTIRE LENGTH OF
		A	B	C	D			E	TOP.
REQUIRED DIMENSIONS TO MAINTAIN		30 1/2	10 1/2	6 1/4	1 1/4			29 3/4
1/4" MIN. CLEARANCE FROM									TOP
COMBUSTIBLE MATERIALS
REQUIRED DIMENSIONS TO MAINTAIN		32	12	5 1/2	2			29
RECOMMENDED 1" CLEARANCE FROM
COMBUSTIBLE MATERIALS
									WALL
D	C	A		C					HEATER ACCESS
									PANEL
	Supply Opening				B
16"
16"					E
16"
	Return Opening				16"
1
16"	6 21 "	30"
1		3"		3 81 "			7
16"	1"		4"				8	"
			Typ.
1 87 "	4"				2	1	"
	Typ.			6 21 "		8
	6 21 "
1 Dimension is 21" on W70A & W70L Units.
1	Dimension is 21" on W6R and W6L Units.

Wall Opening and Hole Location View

RAIN FLASHING

SUPPLIED

FOAM AIR SEAL

WALL STRUCTURE

1/4" CLEARANCE ON ALL FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE MATERIALS

SUPPLY AIR

DUCT

RETURN AIR

OPENING

NOTES:

IT IS RECOMMENDED THAT A BEAD OF

SILICONE CAULKING BE PLACED BEHIND

THE SIDE MOUNTING FLANGES AND UNDER

TOP FLASHING AT TIME OF INSTALLATION.

W*R UNIT SHOWN, W*L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

Right Side View

MIS-416 C

FIGURE 4

ELECTRIC HEAT CLEARANCE

W30A1, W30L1, W36A1, W36L1, W42A1, W42L1, W48A1, W48L1, W60A1, W60L1, W70A1, W70L1

SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR

WALL MOUNTED UNIT SHOWING 1/4 INCH

CLEARANCE TO COMBUSTIBLE SURFACES.

WARNING

A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting.

It is important to insure that the 1/4 inch minimum spacing is maintained at all points.

Failure to do this could result in overheating the combustible material and may result in a fire causing damage, injury or death.

Manual	2100-508F
Page	11 of 25

FIGURE 5

WALL MOUNTING INSTRUCTIONS

	SEE FIGURE 3 – MOUNTING INSTRUCTIONS	WALL STRUCTURE
		FACTORY SUPPLIED
		RAIN FLASHING.
		MOUNT ON UNIT
		BEFORE INSTALLATION

	SUPPLY AIR	SUPPLY AIR	SUPPLY AIR
			DUCT
	OPENING	OPENING

	RETURN AIR	RETURN AIR	RETURN AIR
			OPENING
	OPENING	OPENING

	WOOD OR STEEL SIDING	BOTTOM MOUNTING
		BRACKET. MOUNT ON
		WALL BEFORE
		INSTALLING UNIT.
CONCRETE BLOCK WALL INSTALLATION	WOOD FRAME WALL INSTALLATION	SIDE VIEW	MIS-548 A

FIGURE 6

WALL MOUNTING INSTRUCTIONS

ATTACH TO TOP

PLATE OF WALL

1.000" CLEARANCE ALL AROUND DUCT IF REQUIRED

INTERIOR FINISHED WALL OVER FRAME

SEE UNIT DIMENSIONS, FIGURE 2, FOR ACTUAL DIMENSIONS.

	E + 1.000
	B
		1.000
	SUPPLY DUCT	A
	OPENING

	1.000" CLEARANCE			I
	ALL AROUND DUCT
	IF REQUIRED
		RETURN DUCT		C
		OPENING
	EXTERIOR FINISH WALL
	OVER FRAME			K
			C
		2 x 6	L
FRAMING MATERIAL			THIS STRUCTURAL MEMBER
2 x 4'S, 2 x 6'S &/OR
	ATTACH TO BOTTOM		LOCATED TO MATCH STUD
STRUCTURAL STEEL
	PLATE OF WALL		SPACING FOR REST OF WALL.
MIS-549 A			A SECOND MEMBER MAY BE
			REQUIRED FOR SOME WALLS.

Manual	2100-508F
Page	12 of 25

FIGURE 7

COMMON WALL MOUNTING INSTALLATIONS

	RAIN		RAIN
	FLASHING	RAFTERS
			FLASHING
		FINISHED CEILING SURFACE
		SUPPLY AIR DUCT
		W/ GRILLE
		RETURN AIR
		OPENING W/ GRILLE
	OUTSIDE		OUTSIDE
	WALL
			WALL

SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN

RAFTERS

SUPPLY AIR DUCT

FINISHED CEILING SURFACE

RETURN AIR

OPENING W/ GRILLE

FREE AIR FLOW	DUCTED SUPPLY
NO DUCT	RETURN AT UNIT

SUPPLY DUCT MAYBE LOCATED IN AN ATTIC

OR BELOW CEILING RAFTERS AS SHOWN

RAIN		RAIN
FLASHING
		FLASHING
	RAFTERS
	SUPPLY AIR DUCT
	FINISHED
	CEILING SURFACE
	RETURN AIR
	SPACE
	WALL SLEEVE
	FALSE WALL
OUTSIDE	RETURN AIR GRILLE
		OUTSIDE
WALL		WALL

FALSE WALL INSTALLATION

SUPPLY DUCT MAYBE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN

RAFTERS

SUPPLY AIR DUCT

LOWERED

CEILING SUPPLY AIR

GRILLE

	FINISHED CEILING
CLOSET WALL	SURFACE
WALL
SLEEVE
RAISED FLOOR	RETURN AIR
RETURN AIR	GRILLE

CLOSET INSTALLATION

MIS-550 B

Manual	2100-508F
Page	13 of 25

WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.

The electrical data lists fuse and wire sizes (75° C copper) for all models including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.

The unit rating plate lists a “Maximum Time Delay Relay Fuse” or “HACR” type circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.

The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect. To convert for the locking capability, bend the tab located in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. When shut, a padlock may be placed through the hole in the tab preventing entry.

See “Start Up” section for important information on three phase scroll compressor start ups.

See Tables 3 & 4 for Electrical Specifications.

WIRING – LOW VOLTAGE WIRING

230/208V, 1 phase and 3 phase equipment dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are:

TAP	RANGE
240	253 – 216
208	220 – 187

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

For wiring size and connections, refer to Wiring Manual 2100-507.

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Page	14 of 25

START UP

THESE UNITS REQUIRE R-410A REFRIGERANT AND POLYOL ESTER OIL.

GENERAL:

1.Use separate service equipment to avoid cross contamination of oil and refrigerants.

2.Use recovery equipment rated for R-410A refrigerant.

3.Use manifold gauges rated for R-410A (800 psi/250 psi low).

4.R-410A is a binary blend of HFC-32 and HFC-125.

5.R-410A is nearly azeotropic - similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6.R-410A operates at 40-70% higher pressure than R-22, and systems designed for R-22 cannot withstand this higher pressure.

7.R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8.R-410A compressors use polyolester oil.

9.Polyol Ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10.A liquid line dryer must be used - even a deep vacuum will not separate moisture from the oil.

11.Limit atmospheric exposure to 15 minutes.

12.If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above), and charging to the nameplate charge. If done correctly, topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the pressure charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to insure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

WARNING

Failure to conform to these practices could lead to damage, injury or death.

SAFETY PRACTICES:

1.Never mix R-410A with other refrigerants.

2.Use gloves and safety glasses, Polyol Ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3.Never use air and R-410A to leak check; the mixture may become flammable.

4.Do not inhale R-410A – the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5.Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6.Use only cylinders rated DOT4BA/4BW 400.

7.Never fill cylinders over 80% of total capacity.

8.Store cylinders in a cool area, out of direct sunlight.

9.Never heat cylinders above 125°F.

10.Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

Manual	2100-508F
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START UP (Continued)

IMPORTANT INSTALLER NOTE

For improved start up performance wash the indoor coil with a dish washing detergent.

HIGH PRESSURE SWITCH

All W**A/W**L wall mounted air conditioner series models are supplied with a remote reset for the high and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again.

THREE PHASE SCROLL COMPRESSOR START UP INFORMATION

Scroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as substantially reduced current draw compared to tabulated values.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time, there will be no negative impact on the durability of the compressor. However, reverse operation for over one hour may have a negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverse rotation for several minutes, the compressor’s internal protector will trip.

All three phase compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction.

The direction of rotation of the compressor may be changed by reversing any two line connections to the unit.

PHASE MONITOR

All units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal.

The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor and phases are correct the green LED will light.

If phases are reversed, the red fault LED will be lit and compressor operation is inhibited.

If a fault condition occurs, reverse two of the supply leads to the unit. Do not reverse any of the unit factory wires as damage may occur.

CONDENSER FAN OPERATION

Applies to W42, W48, W60 and W70 models only. The condenser fan motor on 230/208 volt, one and three phase, 60 HZ units is a two-speed motor that comes factory wired on high speed for peak performance. If ambient conditions permit, it can be reconnected to low speed (red wire) for lower sound level. See wiring diagram.

50 HZ models must have fan wired on low speed. These models are factory wired on low speed.

SERVICE HINTS

1.Caution owner/operator to maintain clean air filters at all times. Also, not to needlessly close off supply and return air registers. This reduces airflow through the system, which shortens equipment service life as well as increasing operating costs.

2.Check all power fuses or circuit breakers to be sure they are the correct rating.

3.Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential.

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Page	16 of 25

SEQUENCE OF OPERATION

COOLING – Circuit R-Y makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. The G (indoor motor) circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation. On a call for heating, circuit R-W1 make at the thermostat pulling in heat contact for the strip heat and blower operation. On a call for second stage heat, R-W2 makes bringing on second heat contactor, if so equipped.

COMPRESSOR CONTROL MODULE

The compressor control module is standard on all models covered by this manual. The compressor control module is an anti-short cycle/lockout timer with high and low pressure switch monitoring and alarm relay output.

Adjustable Delay On Make And Break Timer

On initial power up or anytime power is interrupted to the unit, the delay on make period begins, which will be 2 minutes plus 10% of the delay on break setting. When the delay on make is complete and the high pressure switch and low pressure switch is closed, the compressor contactor is energized. Upon shutdown, the delay on break timer starts and prevents restart until the delay on break and delay on make periods have expired.

During routine operation of the unit with no power interruptions, the compressor will operate on demand with no delay.

High Pressure Switch and Lockout Sequence

If the high pressure switch opens, the compressor contactor will de-energize immediately. The lockout timer will go into a soft lockout and stay in soft lockout until the high pressure switch closes and the delay on break time has expired. If the high pressure switch opens again in this same operating cycle, the unit will go into manual lockout condition and the alarm relay circuit will energize. Recycling the wall thermostat resets the manual lockout.

Low Pressure Switch, Bypass, and Lockout Sequence

If the low pressure switch opens for more than 120 seconds, the compressor contactor will de-energize and go into a soft lockout. Regardless the state of the low pressure switch, the contactor will reenergize after the delay on make time delay has expired. If the low pressure switch remains open, or opens again for longer than 120 seconds, the unit will go into manual lockout condition and the alarm relay circuit will energize. Recycling the wall thermostat resets the manual lockout.

Alarm Relay Output

Alarm terminal is output connection for applications where alarm relay is employed. This terminal is powered whenever the compressor is locked out due to HPC or LPC sequences as described.

NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high pressure switch and low pressure switch cut out and cut in settings are fixed by specific air conditioner unit model. The lockout features, both soft and manual, are a function of the Compressor Control Module.

ADJUSTMENTS

Adjustable Delay on Make and Delay on Break Timer

The potentiometer is used to select Delay on Break time from 30 seconds to 5 minutes. Delay on Make (DOM) timing on power-up and after power interruptions is equal to 2 minutes plus 10% of Delay on Break (DOB) setting:

0.5 minute (30 seconds)	DOB = 123 second DOM
1.0 minute (60 seconds)	DOB = 126 second DOM
2.0 minute (120 seconds)	DOB = 132	second DOM
3.0 minute (180 seconds)	DOB = 138	second DOM
4.0 minute (240 seconds)	DOB = 144	second DOM
5.0 minute (300 seconds)	DOB = 150	second DOM

During routine operation of the unit with no power interruptions the compressor will operate on demand with no delay.

Typical Settings for Dual Unit Installation:

Unit 1: DOB set at 2 minutes, and DOM is 132 seconds Unit 2: DOB set at 4 minutes, and DOM is 144 seconds

PRESSURE SERVICE PORTS

High and low pressure service ports are installed on all units so that the system operating pressures can be observed. A pressure table can be found later in the manual covering all models. It is imperative to match the correct pressure table to the unit by model number. See Table 2.

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Page	17 of 25

TROUBLESHOOTING

FAN BLADE SETTING DIMENSIONS

Shown in Figure 8 is the correct fan blade setting for proper air delivery across the outdoor coil. Refer to Table 1 for unit specific dimension.

Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly.

FIGURE 8

FAN BLADE SETTING

MIS-1724

TABLE 1

FAN BLADE DIMENSION

	Model	Dimension
		A
	W17A1 / W17L1
	W18A1 / W18L1	1.00"
	W24A1 / W24L1
	W30A1 / W30L1	1.25"
	W36A1 / W36L1
	W42A1 / W42L1
	W48A1 / W48L1	1.75"
	W60A1 / W60L1
	W70A1 / W70L1	.75"

R-410A

REFRIGERANT CHARGE

This unit was charged at the factory with the quantity of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity.

The following pressure tables show nominal pressures for the units. Since many installation specific situations can affect the pressure readings, this information should only be used by certified technicians as a guide for evaluating proper system performance. They shall not be used to adjust charge. If charge is in doubt, reclaim, evacuate and recharge the unit to the serial plate charge.

REMOVAL OF FAN SHROUD

1.Disconnect all power to the unit.

2.Remove the screws holding both grilles, one on each side of unit, and remove grilles.

3.Remove screws holding fan shroud to condenser and bottom. Nine (9) screws.

4.Unwire condenser fan motor.

5.Slide complete motor, fan blade, and shroud assembly out the left side of the unit.

6.Service motor/fan as needed.

7.Reverse steps to reinstall.

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TABLE 2

COOLING PRESSURE TABLE

Air Temperature Entering Outdoor Coil °F

		Return Air
	Model	Temperature	Pressure	75	80	85	90	95	100	105	110	115	120
		75 deg. DB	Low Side	127	129	131	133	135	137	138	140	141	143
		62 deg. WB	High Side	295	316	337	360	383	407	432	457	484	511
	W17A1/L1	80 deg. DB	Low Side	136	138	140	142	145	146	148	150	151	153
	W18A1/L1	67 deg. WB	High Side	303	324	346	369	400	417	443	469	496	524
		85 deg. DB	Low Side	141	143	145	147	149	151	153	155	156	158
		72 deg. WB	High Side	314	335	358	382	407	432	459	485	513	542
		75 deg. DB	Low Side	121	123	125	127	130	132	134	135	137	138
		62 deg. WB	High Side	326	350	375	401	426	450	477	502	527	553
	W24A1/L1	80 deg. DB	Low Side	129	132	134	136	137	141	143	144	146	148
		67 deg. WB	High Side	334	359	385	411	431	462	489	515	541	567
		85 deg. DB	Low Side	134	137	139	141	144	146	148	149	151	153
		72 deg. WB	High Side	346	372	398	425	452	478	506	533	560	587
		75 deg. DB	Low Side	121	122	125	127	130	132	134	136	137	138
		62 deg. WB	High Side	335	357	380	404	429	454	481	509	537	566
	W30A1/L1	80 deg. DB	Low Side	129	131	134	136	139	141	143	145	146	148
		67 deg. WB	High Side	344	366	390	414	436	466	493	522	551	581
		85 deg. DB	Low Side	134	136	139	141	144	146	148	150	151	153
		72 deg. WB	High Side	356	379	404	428	455	482	510	540	570	601
		75 deg. DB	Low Side	123	125	127	129	131	133	136	138	140	143
		62 deg. WB	High Side	350	372	396	420	445	470	496	524	552	581
	W36A1/L1	80 deg. DB	Low Side	132	134	136	138	140	142	145	148	150	153
		67 deg. WB	High Side	359	382	406	431	452	482	509	537	566	596
		85 deg. DB	Low Side	137	139	141	143	145	147	150	153	155	158
		72 deg. WB	High Side	372	395	420	446	472	499	527	556	586	617
		75 deg. DB	Low Side	128	130	132	133	135	137	138	140	142	144
		62 deg. WB	High Side	341	362	383	406	429	453	480	506	534	564
	W42A1/L1	80 deg. DB	Low Side	137	139	141	142	142	146	148	150	152	154
		67 deg. WB	High Side	350	371	393	416	435	465	492	519	548	578
		85 deg. DB	Low Side	142	144	146	147	149	151	153	155	157	159
		72 deg. WB	High Side	362	384	407	431	455	481	509	537	567	598
		75 deg. DB	Low Side	125	127	129	131	133	136	137	140	143	146
		62 deg. WB	High Side	349	370	391	415	440	467	495	526	557	590
	W48A1/L1	80 deg. DB	Low Side	134	136	138	140	142	145	147	150	153	156
		67 deg. WB	High Side	358	379	401	426	454	479	508	539	571	605
		85 deg. DB	Low Side	139	141	143	145	147	150	152	155	158	161
		72 deg. WB	High Side	371	392	415	441	467	496	526	558	591	626
		75 deg. DB	Low Side	126	128	130	132	133	135	137	137	139	141
		62 deg. WB	High Side	352	373	396	418	442	466	491	517	544	571
	W60A1/L1	80 deg. DB	Low Side	135	137	139	141	142	144	146	147	149	151
		67 deg. WB	High Side	361	383	406	429	453	478	504	530	558	586
		85 deg. DB	Low Side	140	142	144	146	147	149	151	152	154	156
		72 deg. WB	High Side	374	396	420	444	469	495	522	549	578	607
		75 deg. DB	Low Side	118	119	121	122	123	125	127	130	132	135
		62 deg. WB	High Side	326	347	370	392	416	440	465	489	516	542
	W70A1/L1	80 deg. DB	Low Side	126	127	129	131	132	134	136	139	141	144
		67 deg. WB	High Side	334	356	379	402	427	451	477	502	529	556
		85 deg. DB	Low Side	130	131	134	136	137	139	141	144	146	149
		72 deg. WB	High Side	346	368	392	416	442	467	494	520	548	575

Low side pressure ± 4 PSIG High side pressure ± 10 PSIG

Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed, system evacuated and recharged to serial plate charge weight.

NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See “Condenser Fan Operation”.

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Page	19 of 25

TABLE 3

Electrical Specifications — W**A Series

					Single Circuit						Dual Circuit
		Rated	No. Field	3 Minimum	1 Maximum	2 Field		3 Minimum		1 Maximum		2 Field		2 Ground
							2 Ground	Circuit		External Fuse		Power
	Model	Volts	Power	Circuit	External Fuse	Power								Wire Size
							Wire	Ampacity		or Ckt. Brkr.		Wire Size
		and Phase	Circuits	Ampacity	or Ckt. Brkr.	Wire Size
								Ckt. A	Ckt. B	Ckt. A	Ckt. B	Ckt. A	Ckt. B	Ckt. A	Ckt. B
	W17, 18A1 - A00, A0Z		1	16	20	12	12
	A05	230/208-1	1	30	30	10	10
	A08		1	46	50	8	10
	A10		1	56	60	6	10
	W24A1 - A00, A0Z		1	21	30	10	10
	A05	230/208-1	1	30	30	10	10
	A08		1	46	50	8	10
	A10		1	56	60	6	10
	W24A1 - B00, B0Z	230/208-3	1	15	15	14	14
	B06		1	22	25	10	10
	W24A1 - C00, C0Z	460-3	1	10	15	14	14
	C06		1	12	15	14	14
	W30A1 - A00*, A0Z*		1	24	35	8	10
	A05*		1	32	35	8	10
	A08	230/208-1	1	48	50	8	10
	A10*		1	58	60	6	10
	A15		1 or 2	84	90	4	8	58	26	60	30	6	10	10	10
	W30A1 - B00*, B0Z*		1	18	20	12	12
	B06	230/208-3	1	24	25	10	10
	B09*		1	33	35	8	10
	B15		1	51	60	8	10
	W30A1 - C00*, C0Z*		1	11	15	14	14
	C06	460-3	1	12	15	14	14
	C09*		1	17	20	12	12
	C15		1	26	30	10	10
	W36A1 - A00*, A0Z*		1	29	35	8	10
	A05*		1	32	35	8	10
	A08	230/208-1	1	48	50	8	10
	A10*		1	58	60	6	10
	A15		1 or 2	84	90	4	8	58	26	60	30	6	10	10	10
	W36A1 - B00*, B0Z*		1	23	30	10	10
	B06	230/208-3	1	24	30	10	10
	B09*		1	33	35	8	10
	B15		1	51	60	6	10
	W36A1 - C00*, C0Z*		1	12	15	14	14
	C06	460-3	1	12	15	14	14
	C09*		1	17	20	10	10
	C15		1	26	30	10	10
	W42A1 - A00, A0Z		1	33	50	8	10
	A05		1	33	50	8	10
	A10	230/208-1	1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	A20		1 or 2	111	125	2	6	59	52	60	60	6	6	10	10
	W42A1 - B00, B0Z		1	25	35	8	10
	B09	230/208-3	1	34	35	8	10
	B15		1	53	60	6	10
	B18		2	N/A	N/A	N/A	N/A	34	28	35	30	8	10	10	10
	W42A1 - C00, C0Z		1	13	15	14	14
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W48A1 - A00, A0Z		1	37	50	8	10
	A05		1	37	50	8	10
	A10	230/208-1	1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	A20		1 or 2	111	125	2	6	59	52	60	60	6	6	10	10
	W48A1B00, B0Z		1	29	40	8	10
	B09	230/208-3	1	34	40	8	10
	B15		1	52	60	6	10
	B18		2	N/A	N/A	N/A	N/A	34	28	40	30	8	10	10	10
	W48A1 - C00, C0Z		1	14	20	12	12
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W60A1 - A00, A0Z		1	41	60	8	10
	A05		1	41	60	8	10
	A10	230/208-1	1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	A20		1 or 2	111	125	2	6	59	52	60	60	6	6	10	10
	W60A1 - B00, B0Z		1	28	40	8	10
	B09	230/208-3	1	34	40	8	10
	B15		1	53	60	6	10
	B18		2	N/A	N/A	N/A	N/A	34	28	40	30	8	10	10	10
	W60A1 - C00, C0Z		1	15	20	12	12
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W70A1 - A00, A0Z		1	49	60	8	10
	A05		1	49	60	8	10
	A10	230/208-1	1 or 2	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	A20		1 or 2	111	125	2	6	59	52	60	60	6	6	10	10
	W70A1 - B00, B0Z		1	43	60	8	10
	B09	230/208-3	1	43	60	8	10
	B15		1	53	60	6	10
	B18		2	N/A	N/A	N/A	N/A	43	28	60	30	8	10	10	10
	W70A1 - C00, C0Z		1	23	30	10	10
	C09	460-3	1	23	30	10	10
	C15		1	27	35	8	10

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.

Caution: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

* Top outlet supply option is available only factory installed and only on the selected models.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.

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TABLE 4

Electrical Specifications — W**L Series

					Single Circuit						Dual Circuit
		Rated	No. Field	3 Minimum	1 Maximum	2 Field		3 Minimum		1 Maximum		2 Field		2 Ground
							2 Ground	Circuit		External Fuse		Power
	Model	Volts	Power	Circuit	External Fuse	Power								Wire Size
							Wire	Ampacity		or Ckt. Brkr.		Wire Size
		and Phase	Circuits	Ampacity	or Ckt. Brkr.	Wire Size
								Ckt. A	Ckt. B	Ckt. A	Ckt. B	Ckt. A	Ckt. B	Ckt. A	Ckt. B
	W17, 18L1 - A00, A0Z		1	16	20	12	12
	A05	230/208-1	1	30	30	10	10
	A08		1	46	50	8	10
	A10		1	56	60	6	10
	W24L1 - A00, A0Z		1	21	30	10	10
	A05	230/208-1	1	30	30	10	10
	A08		1	46	50	8	10
	A10		1	56	60	6	10
	W24L1 - B00, B0Z	230/208-3	1	15	15	14	14
	B06		1	22	25	10	10
	W30L1 - A00*, A0Z*		1	24	35	8	10
	A05*		1	32	35	8	10
	A08	230/208-1	1	48	50	8	10
	A10*		1	58	60	6	10
	A15		1 or 2	84	90	4	8	58	26	60	30	6	10	10	10
	W30L1 - B00*, B0Z*		1	18	20	12	12
	B09*	230/208-3	1	33	35	8	10
	B15		1	51	60	8	10
	W30L1 - C00*, C0Z*		1	11	15	14	14
	C09*	460-3	1	17	20	12	12
	C15		1	26	30	10	10
	W36L1 - A00*, A0Z*		1	29	35	8	10
	A05*	230/208-1	1	32	35	8	10
	A10*		1	58	60	6	10
	A15		1 or 2	84	90	4	8	58	26	60	30	6	10	10	10
	W36L1 - B00*, B0Z*		1	23	30	10	10
	B09*	230/208-3	1	33	35	8	10
	B15		1	51	60	6	10
	W36L1 - C00*, C0Z*		1	12	15	14	14
	C09*	460-3	1	17	20	10	10
	C15		1	26	30	10	10
	W42L1 - A00, A0Z		1	33	50	8	10
	A05	230/208-1	1	33	50	8	10
	A10		1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	W42L1 - B00, B0Z		1	25	35	8	10
	B09	230/208-3	1	34	35	8	10
	B15		1	53	60	6	10
	W42L1 - C00, C0Z		1	13	15	14	14
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W48L1 - A00, A0Z		1	37	50	8	10
	A05	230/208-1	1	37	50	8	10
	A10		1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	W48L1B00, B0Z		1	29	40	8	10
	B09	230/208-3	1	34	40	8	10
	B15		1	52	60	6	10
	W48L1 - C00, C0Z		1	14	20	12	12
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W60L1 - A00, A0Z		1	41	60	8	10
	A05	230/208-1	1	41	60	8	10
	A10		1	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	W60L1 - B00, B0Z		1	28	40	8	10
	B09	230/208-3	1	34	40	8	10
	B15		1	53	60	6	10
	W60L1 - C00, C0Z		1	15	20	12	12
	C09	460-3	1	18	20	12	12
	C15		1	27	30	10	10
	W70L1 - A0Z		1	49	60	8	10
	A05	230/208-1	1	49	60	8	10
	A10		1 or 2	59	60	6	10
	A15		1 or 2	85	90	4	8	59	26	60	30	6	10	10	10
	W70L1 - B0Z		1	43	60	8	10
	B09	230/208-3	1	43	60	8	10
	B15		1	53	60	6	10
	W70L1 - C0Z		1	23	30	10	10
	C09	460-3	1	23	30	10	10
	C15		1	27	35	8	10

1 Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. 2 Based on 75C copper wire. All wiring must conform to the National Electrical Code and all local codes.

3These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.

Caution: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

* Top outlet supply option is available only factory installed and only on the selected models.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.

Manual	2100-508F
Page	21 of 25

TABLE 5

RECOMMENDED AIRFLOW

		Rated	Rated	Recommended		Factory Speed
	Model	CFM *	ESP *	Airflow Range		Connection
	W17A, W17L	550	.40	575	- 725	High
	W18A, W18L
	W24A, W24L	800	.20	700	- 950	High
	W30A, W30L	1000	.40	930 - 1300		High
	W36A, W36L	1100	.30	930 - 1350		High
	W42A, W42L	1400	.30	1600 - 1150		High
	W48A, W48L	1550	.20	1750	- 1285	High
	W60A, W60L	1650	.30	1950	- 1375	High
	W70A, W70L	1800	.20	2000	- 1475	High

* Rated CFM and ESP on high speed tap.

TABLE 6

INDOOR BLOWER PERFORMANCE

	W17A/L,
	W18A/L,			W30A/L, W36A/L						W42A/L, W48A/L						W60A/L, W70A/L
	W24A/L
E.S.P.	High Speed		High Speed			Low Speed			High Speed			Low Speed			High Speed			Low Speed
In	Dry	Wet	Dry		Wet	Dry		Wet	Dry		Wet	Dry		Wet	Dry		Wet	Dry		Wet
H2O	Coil	Coil	Coil		Coil	Coil		Coil	Coil		Coil	Coil		Coil	Coil		Coil	Coil		Coil
.0	1020	975	1395		1315	950		935	1885		1800	1650		1600	2200		2000	1600		1450
.1	960	905	1340		1270	930		915	1770		1665	1550		1500	2100		1900	1525		1375
.2	865	800	1285		1190	910		885	1635		1540	1450		1400	2000		1800	—		—
.3	820	735	1205		1100	855		830	1500		1400	1350		1300	1875		1700	—		—
.4	735	650	1110		1000	800		755	1370		1285	1300		1175	1775		1600	—		—
.5	615	535	1005		870	—		—	1250		1150	—		—	1650		1475	—		—

TABLE 7

MAXIMUM ESP OF OPERATION

ELECTRIC HEAT ONLY

	Model	W17A/L,		W30A/L, W36A/L				W42A/L, W48A/L		W60A/L, W70A/L
		W18A/L, W24A/L
	Outlet	FRONT	FRONT		TOP			FRONT		FRONT
	Speed	Single	High	Low	High		Low	High	Low	High	Low
	-A0Z	.50	.50	.50	.50		.50	.50	.50	.50	.50
	-A04				.50		.45
	-A05	.50	.50	.50				.50	.50	.50	.50
	-A08	.50	.50	.50
	-A10		.50	.45	.50		.35	.50	.50	.50	.50
	-A15		.40	.35				.50	.50	.50	.50
	-A20							.50	.45	.50	.40
	-B0Z	.50	.50	.50	.50		.50	.50	.50	.50	.50
	-B06	.50	.50	.40
	-B09		.50	.50	.45		.40	.50	.50	.50	.50
	-B15		.45	.30				.50	.50	.50	.50
	-B18							.50	.50	.50	.50
	-C0Z		.50	.50	.50		.50	.50	.50	.50	.50
	-C06		.50	.50
	-C09		.50	.40	.45		.40	.50	.50	.50	.50
	-C15		.45	.35				.50	.50	.50	.50
	Values shown are for units equipped with standard 1-inch throwaway filter or 1-inch washable filter.
	Derate ESP by .15 for 2-inch pleated filters.
Manual	2100-508F
Page	22 of 25

TABLE 8

ELECTRIC HEAT

Models	240V-1		208V-1		240V-3		208V-3		460V-3
KW	Amps	BTUH	Amps	BTUH	Amps	BTUH	Amps	BTUH	Amps	BTUH
4	16.7	13650	14.4	10240
5	20.8	17065	18.1	12800
6					14.4	20500	12.5	15360	7.2	20500
8	33.3	27300	28.8	20475
9					21.7	30600	18.7	23030	10.8	30700
10	41.6	34130	36.2	25600
12									14.4	40950
15	62.5	51250	54.0	38400	36.2	51200	31.2	38400	18.0	51200
18					43.3	61430	37.5	46100
20	83.2	68260	72.1	51200

Manual	2100-508F
Page	23 of 25

Part Number

TABLE 9

OPTIONAL ACCESSORIES

W17/18A1-A

W24A1-A

W24A1-B

W24A1-C

W30A1-A

W30A1-B

W30A1-C

W36A1-A

W36A1-B

W36A1-C

W42A1-A

W42A1-B

W42A1-C

W48A1-A

W48A1-B

W48A1-C

W60A1-A

W60A1-B

W60A1-C

W70A1-A

W70A1-B

W70A1-C

EHWA02-A05

X

X

EHW02A-A08

X

X

EHWA02A-A10

X

X

EHWA24-B06

X

EHWH24B-C06

X

EHWA03-A05

X

X

EHWA03-A08

X

X

EHWA03-A10

X

X

EHWA03-A15

X

X

EHWA03-B06

X

EHW36A-B06

X

KITS

EHWA37-B15

X

X

EHWA03-B09

X

X

HEATER

EHWC03A-C06

X

X

EHWC03A-C09

X

X

EHWA03A-C15

X

X

EHWA05-A05

X

X

EHWA05-A10

X

X

X

X

EHWA05-A15

X

X

X

X

EHWA05-A20

X

X

X

X

EHWA05-B09

X

X

EHWA05-B15

X

X

X

X

EHW05A-B18

X

X

X

X

EHWA05A-C09

X

X

X

X

EHWA05A-C15

X

X

X

X

EHWA60-A05

X

X

EHWA60-B09

X

X

WMCB-01B

X

BREAKERCIRCUIT(WMCB) & DISCONNECTPULL (WMPD)

WMCB-02A

X

WMPD-01C

X

X

X

X

X

X

X

WMCB-02B

X

WMCB-03A

X

WMCB-04B

X

WMCB-05A

X

X

WMCB-05B

X

X

WMCB-06B

X

WMCB-08A

X

X

WMCB-09A

X

X

WMCB-09B

X

Manual	2100-508F
Page	24 of 25

TABLE 10

VENT & CONTROL OPTIONS

Part Number

Description

W17, W18, W24

W30, W36

W42, W48, W60, W70

CMC-14	ODT	X	X	X
CMC-15	Start Kit (230V 1-Phase)	X	X	X
CMC-23	DDC	X	X
CMC-24	DDC			X
CMC-28	LAC	X	X	X
BFAD-2	Barometric Fresh Air Damper - Standard	X
BOP-2	Blank Off Plate	X
MFAD-2	Motorized Fresh Air Damper	X
CRV-2	Commercial Ventilator - Spring Return	X
EIFM-2B	Economizer	X
ERVF-2A	Energy Recovery Ventilator - 230 Volt	X
BFAD-3	Barometric Fresh Air Damper - Standard		X
BOP-3	Blank Off Plate		X
MFAD-3	Motorized Fresh Air Damper		X
CRVS-3	Commercial Ventilator - Spring Return		X
CRVP-3	Commercial Ventilator - Power Return		X
EIFM-3C	Economizer		X
ERVF-3A	Energy Recovery Ventilator - 230 Volt		X
ERVF-3C	Energy Recovery Ventilator - 460 Volt		X
BFAD-5	Barometric Fresh Air Damper - Standard			X
BOP-5	Blank Off Plate			X
MFAD-5	Motorized Fresh Air Damper			X
CRVS-5	Commercial Ventilator - Spring Return			X
CRVP-5	Commercial Ventilator - Power Return			X
EIFM-5C	Economizer			X
ERVF-5A	Energy Recovery Ventilator - 230 Volt			X
ERVF-5C	Energy Recovery Ventilator - 460 Volt			X

Manual	2100-508F
Page	25 of 25